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(See Steps) A simple random sample of size n is drawn from a population whose population standard deviation, σ, is known to be 3.8. The sample mean,

Question: A simple random sample of size \(\mathrm{n}\) is drawn from a population whose population standard deviation, \(\sigma\), is known to be 3.8. The sample mean, \(\bar{x}\), is determined to be 59.2.

Compute the \(90 \%\) confidence interval about \(\mu\) if the sample size, \(\mathrm{n}\), is 45 .

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